Electric 

Dumbwaiters 


We  are  the  Largest 
Manufacturers  of 
Electric  Dumbwaiters 
in  the  World 


Burdett-Rowntree  Mfg.  Co. 

CHICAGO  ::  NEW  YORK 


Burdett-Rowntree 
Manufacturing  Co. 

We  are  prepared  to  furnish 
Electric  Dumbwaiters  for  any 
special  purpose  desired. 

We  have  electric  dumbwaiters 
in  operation  for  almost  every  im¬ 
aginable  combination  of  loads  and 
speeds  from  600  pounds  traveling 
at  50  feet  per  minute  to  150 
pounds  traveling  at  1,000  feet  per 
minute. 

We  have  controls  suited  to  al¬ 
most  every  possible  condition.  If 
none  of  our  standard  controls 
seem  exactly  suited  to  your  needs, 
we  will  gladly  devise  for  you  a 
special  arrangement  to  suit  your 
particular  needs. 

We  can  save  you  thousands  of 
dollars  annually  by  carrying  your 
product  from  one  floor  to  another 

in  the  most  economical  and  quick¬ 
est  way. 

85  W.  Jackson  Blvd. 
Chicago 

147  W.  26th  Street 
New  York 


Hotel  St.  Regis,  New  York  City. 

Seven  Electric  Dumbwaiters. 


Hotel  Astor,  New  York  City. 
Nine  Electric  Dumbwaiters. 


11 


DFC  7  191/ 


Electric  Dumbwaiters 

WE  build  and  install  a  large 
number  of  different  types  of 
eleetric  dumbwaiters,  each  type 
being  designed  especially  to  meet 
the  requirements  of  some  par¬ 
ticular  line  of  business.  The 
various  combinations  of  these  types 
enable  us  to  furnish  electric  dumb¬ 
waiters  adapted  to  almost  any 
possible  condition. 

We  install  them  in  hotels,  res¬ 
taurants,  cafes,  libraries,  whole¬ 
sale  and  retail  houses,  in  hospitals 
and  in  private  residences,  and  in 
fact  in  almost  every  building  of 
any  pretensions.  As  we  have  in¬ 
stalled  a  large  majority  of  the 
electric  dumbwaiters  in  use  in  the 
United  States,  we  could  not  in 
this  small  catalogue  give  even  a 
representative  list  of  our  installa¬ 
tions,  but  we  mention  below  a 
few  of  some  of  the  different 
types  of  buildings  that  are  using 
our  dumbwaiters  in  order  to  dem¬ 
onstrate  that  those  who  require 
the  highest  type  of  equipment  are 
using  our  machines. 

Hotels. 

St.  Regis,  New  York  City. 
Auditorium  Annex,  Chicago. 
St.  Francis,  San  Francisco. 
Grunewald,  New  Orleans. 


7 


Hotel  Grunewald,  New  Orleans. 

Four  Electric  Dumbwaiters. 


Hotel  St.  Francis,  San  Francisco. 

Three  Electric  Dumbwaiters. 


Restaurants  and  Cafes. 

Cafe  Martin,  New  York  City. 

Bismarck,  Chicago. 

Broad  St.  Station,  Philadelphia. 
Chandler  &  Rudd,  Cleveland. 

Clubs. 

New  York,  New  York  Citv. 
Chicago  Athletic,  Chicago. 
Crescent  Athletic,  Brooklyn. 
Racquet,  Philadelphia. 

Libraries. 

All  Carnegie  Libraries,  New  York. 
Chicago  Public  Library,  Chicago. 
Free  Public  Library,  Louisville. 
Library  of  Congress,  Washingt’n. 

Factories. 

Felt  &  Tarrant  Mig.  Co.,  Chi¬ 
cago. 

Duff  Mfg.  Co.,  Pittsburg. 

H.  Sonneborn  8z  Co.,  Baltimore. 
S.  S.  White  Dental  Co.,  Phila. 


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Marshall  Field  &  Co.,  Chicago. 
Wholesale  Store. 

Five  Electric  Dumbwaiters. 


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Marshall  Field  &  Co.,  Chicago. 
Retail  Store. 

Seven  Electric  Dumbwaiters. 


Wholesale  Houses. 

Revillon  Freres,  New  York. 
Marshall  Field  &  Co.,  Chicago. 
A.  Zellerbach  &  Sons,  San  Fran. 
Cluett,  Peabody  &  Co.,  St.  Louis. 

Retail  Houses. 

B.  Altman  &  Co.,  New  York. 

Carson,  Pirie,  Scott  &  Co.,  Chi¬ 
cago. 

Scruggs,  Vandervoort  &  Barney, 
St.  Louis. 

Marshall  Field  &  Co.,  Chicago. 
H.  Jevne  Co.,  Los  Angeles. 

Hospitals. 

Presbyterian  Hospital,  Chicago. 
Women’s  Hospital,  New  York. 
Hospital  for  Insane,  Cherokee,  la. 

Providence  Retreat,  Buffalo. 

Private  Residences. 

Mrs.  Bradley  Martin,  New  York. 
Mr.  Franklin  MacVeagh,  Chicago. 
Mrs.  M.  B.  Caldwell,  Louisville. 
Mr.  W.  A.  Marburg,  Baltimore. 


12 


Carson,  Pirie,  Scott  &  Co.,  Chicago. 
Retail  Store. 

Two  Electric  Dumbwaiters. 


Wanamaker’s,  New  York. 
Six  Electric  Dumbwaiters. 


General  Description 

WE  design  and  build  our  ma¬ 
chines  so  that  they  are  ex¬ 
tremely  simple  in  their  construc¬ 
tion.  At  the  same  time  they  are 
far  more  automatic  in  their  opera¬ 
tion  than  other  dumbwaiters  of  a 
similar  type  of  control  and  will 
bear  comparison  with  the  best 
constructed  electrical  machines  of 
any  kind.  Every  part  is  put  to¬ 
gether  with  the  greatest  mechan¬ 
ical  accuracy.  Our  motors  are 
built  especially  for  this  work  and 
we  use  our  special  patented  sys¬ 
tem  of  motor  winding,  thereby 
producing  results  that  can  not  be 
obtained  with  ordinary  motors. 
The  number  of  switches  and  mov¬ 
ing  parts  has  been  reduced  to  a 
minimum  and  the  machines  are 
therefore  very  simple  and  have  no 
parts  liable  to  get  out  of  order. 

By  means  of  our  patented  sys¬ 
tem  of  automatically  slowing 
down  the  car  before  it  reaches  the 
floor,  we  are  able  to  run  our  auto¬ 
matic  dumbwaiters  at  almost  any 
speed  desired  and  cause  them  to 
stop  smoothly  and  accurately  at 
any  floor. 

We  have  now  in  daily  operation 
an  automatic  dumbwaiter  running 
one  thousand  feet  per  minute, 
where  the  automatic  stops  at  the 
different  floors  never  vary  more 
than  one  and  a  half  inches  at  any 
time  regardless  of  the  load. 

We  build  each  machine  spe¬ 
cially  for  the  load,  speed,  length 
of  travel  and  voltage,  etc.,  of  each 
particular  installation. 


14 


Details  of  Electric 
Dumbwaiter  Controls 

ON  the  following  pages  we 
give  a  brief  description  of 
each  type  of  control  and  some  of 
the  purposes  for  which  they  are 
adapted.  Following  these  types 
of  control  will  be  found  a  few 
pages  containing  information  rela¬ 
tive  to  the  load,  speed  and  travel, 
etc.,  of  each  different  type  of 
dumbwaiter  machine. 

We  can  furnish  almost  any 
form  of  control  for  automatic 
dumbwaiters  that  may  be  desired. 
The  controls  and  types  mentioned 
herein  are  our  standard  construc¬ 
tions  and  they  can  be  modified 
to  suit  special  requirements  when 
necessary. 

We  divide  our  electric  controls 
into  two  heads — automatic  and 
non-automatic.  With  the  auto¬ 
matic  control,  the  car  stops  auto- 
ically  at  any  floor  to  which  it 
is  sent.  With  the  non-automatic 
control,  the  car  stops  automat¬ 
ically  at  the  limits  of  its  travel 
and  only  stops  at  an  intermediate 
point  wheff|Stopped  by  an  attend¬ 
ant  either- to-uching  a  button,  or 
pulling  the  cdutrol  rope,  as  the 
case  may  be. 

We  divide  our  automatic  con¬ 
trols  into  five  divisions  and  the 
non-automatic  into  three  divisions 
as  described  on  the  following 
pages. 

Burdett-Rowntree  Mfg.  Co. 


16 


This  is  a  View  from  Above  of  the  Control  Slate 
OF  Our  Automatic  Dumbwaiters. 


Full  Push  Control 

''T^HE  car  can  be  controlled 
^  from  any  floor  and  can  be 
brought  to  any  floor  or  sent  to 
any  floor  by  simply  pressing  a 
button  on  any  floor.  If  the  car  is 
in  use  or  if  any  door  is  open,  the 
car  can  not  be  started.  We  can 
furnish  this  control  for  any  type 
of  machine  we  build.  We  do  not 
recommend  it  for  any  of  our  type 
A  machines  with  a  higher  speed 
than  130  feet  per  minute,  as  the 
type''  A  machines  are  not  furnished 
with  a  slowing-up  device  and 
at  a  higher  speed  than  130  feet 
per  minute,  the  stops  would  not 
be  very  accurate  without  the 
automatic  slowing-up  device. 

We  can,  however,  if  desired, 
furnish  this  control  with  type  A 
machines  up  to  200  feet  per  min¬ 
ute  if  accurate  stops  are  not  de¬ 
sired. 

This  full  push  control  is  espe¬ 
cially  suited  for  private  residences 
and  for  all  purposes  where  it  may 
be  desired  to  control  the  dumb¬ 
waiter  from  different  floors  at  dif¬ 
ferent  times. 


18 


A  W  i  i 


f 


Typical  Control  Box 


One  Point  with  Signals 

The  car  can  be  controlled 
from  one  floor  only.  It  can 
be  sent  to  any  floor  from  any 
floor,  when  operated  from  the 
controlling  floor.  The  control  box 
indicates  the  last  floor  to  which 
the  car  was  sent. 

A  signal  lamp  shows  whether 
the  car  is  in  motion  or  at  rest  and 
whether  any  door  is  open.  Signal 
devices  are  furnished  so  that  pres¬ 
sing  a  button  on  any  floor  will 
signal  to  the  operator  that  the  car 
is  desired  at  the  floor  from  which 
the  signal  was  sent.  If  the  car  is 
in  use  or  if  any  door  is  open,  the 
car  can  not  be  started. 

Sometimes  with  this  control  we 
also  furnish  where  desired,  signal 
devices  operated  from  the  car  so 
that  before  the  attendant  closes 
the  door,  by  touching  one  of  a  set 
of  buttons  in  the  car,  he  can  signal 
to  the  operator  the  floor  to  which 
it  is  desired  the  car  should  go. 
Also  where  desired  we  install  a 
bell  on  each  floor  and  a  set  of  but¬ 
tons  on  the  control  board,  so  that 
the  operator  can  call  up  any  floor 
where  the  car  is  unnecessarily  de¬ 
tained. 

We  can  furnish  this  control  for 
any  of  our  types  of  machines,  ex¬ 
cept  types  A.  It  is  especially 
suited  for  all  purposes  where  the 
largest  possible  benefit  is  desired 
from  the  use  of  the  dumbwaiter. 


20 


One  Point  Control. 


Half  Automatic  Control 

The  car  can  be  fully  con¬ 
trolled  from  one  floor  only. 
When  operated  from  that  floor, 
usually  the  main  floor,  the  car  can 
be  sent  to  any  floor  from  any  floor. 
When  operated  from  any  of  the 
other  floors,  the  car  can  only  be 
sent  to  the  main  floor.  If  the  car 
is  in  use  or  if  any  door  is  open,  the 
car  can  not  be  started. 

We  can  furnish  this  control  with 
any  of  our  types  of  machines,  but 
we  do  not  recommend  its  use  with 
our  type  A  machines  with  a  higher 
speed  than  130  feet  per  minute,  as 
no  slowing-up  device  is  furnished 
with  the  type  A  machines. 

It  is  especially  suited  for  apart¬ 
ment  houses,  restaurants,  hotels, 
clubs,  libraries,  etc. 


Call  and  Send  Control 

HE  car  can  be  fully  con- 
^  trolled  from  one  floor  only, 
When  operated  from  that  floor,  us¬ 
ually  the  main  floor,  the  car  can  be 
sent  to  any  floor  from  any  floor. 
When  operated  from  any  of  the 
other  floors,  the  car  can  be  called  to 
that  floor  or  can  be  sent  to  the  main 
floor,  but  it  can  not  be  sent  to  any 
of  the  other  floors. 

This  control  can  be  furnished 
with  any  of  our  types  of  machines, 
but  we  do  not  recommend  its  use 
with  our  type  A  machines  with  a 
higher  speed  than  130  feet  per  min¬ 
ute  on  account  of  the  absence  of 
slowing-up  devices  on  this  machine. 

It  is  especially  suited  for  apart¬ 
ment  houses,  restaurants,  libraries, 
etc. 


23 


Car  Control 

T^HE  car  can  be  controlled  only 
^  from  the  floor  at  which  the  car 
is  situated.  A  set  of  control  but¬ 
tons  is  placed  in  the  car.  The  car 
can  be  sent  to  any  floor,  but  can  not 
be  brought  to  any  floor. 

We  can  furnish  this  control  with 
any  of  our  types  of  machines.  We 
do  not  recommend  its  use  with  type 
A  with  a  speed  of  over  130  feet 
per  minute  or  at  a  greater  speed 
than  200  feet  per  minute  in  any 
case. 

It  is  especially  suited  for  restau¬ 
rant  service  where  not  over  three 
or  four  floors  are  to  be  served.  Its 
special  application  is  for  use  in 
restaurant  service,  as  it  is  the  only 
form  of  control  that  can  be  safely 
operated  without  any  doors  on  the 
dumbwaiter  hatchway. 

The  elimination  of  the  doors 
makes  it  possible  for  the  waiters  to 
load  and  unload  the  cars  much  more 
rapidly  and  in  perfect  safety,  as  the 
car  can  not  be  started  from  any 
other  floor. 


24 


4.  » 


The  Burdett-Rowntree  Meg.  Co.  Automatic 
Electric  High-Speed  Dumbwaiter  Engine, 
WITH  Push-Button  Control. 


Non- Automatic 
Control  — Two -Button 

T^HIS  control  is  to  be  used  only 
^  on  two-stop  machines,  that  is 
machines  with  top  and  bottom  stop 
only.  For  two-floor  use  it  is  the 
exact  equivalent  of  the  full  push 
control,  except  that  we  do  not  ad¬ 
vise  its  use  at  a  greater  speed  than 
130  feet  per  minute  if  accurate 
stops  are  desired.  At  a  higher 
speed  than  130  feet  per  minute  we 
recommend  the  use  of  the  full  push 
control. 

It  can  be  used  on  any  of  our 
types  of  machines  and  is  applicable 
for  any  purpose  where  top  and  bot¬ 
tom  stops  only  are  desired. 

If  the  car  is  in  use  or  if  any  door 
is  open,  the  car  can  not  be  started. 


26 


Traction  Sheave  Machine, 
WITH  Full  Push  Control. 


Three-Button  Control 

The  car  can  be  started  in  either 
the  np  or  down  direction  by 
touching  the  up  or  down  button  on 
any  floor.  It  can  be  stopped  at  any 
time  by  touching  the  “stop”  button 
on  any  floor.  If  not  stopped  in  this 
way,  it  will  automatically  stop  at 
the  limit  of  its  travel.  If  the  car  is 
in  use  or  any  door  is  open,  the  car 
can  not  be  started. 

We  can  furnish  this  control  on 
any  of  our  types  of  machines,  but 
we  do  not  recommend  its  use  with 
a  higher  speed  than  130  feet  per 
minute,  as  with  higher  speeds  the 
difficulty  of  making  good  intermedi¬ 
ate  stops  would  probably  result  in 
the  operator  making  poor  stops  and 
then  correcting  them  by  endeavor¬ 
ing  to  move  the  car  a  few  inches  at 
a  time,  thereby  placing  an  excessive 
amount  of  wear  and  tear  on  the 
operating  switches. 

It  is  especially  suited  for  installa¬ 
tions  where  an  attendant  will  al¬ 
ways  be  at  the  floor  to  which  the 
car  is  sent,  so  that  he  can  stop  the 
car  upon  its  arrival. 


28 


Traction  Sheave  Machine,  with 
Three-Button  Control, 


Rope  Control 

I  HE  car  is  operated  by  means 
^  of  a  rope  in  the  dumbwaiter 
hatchway  in  a  similar  manner  to  the 
control  of  an  ordinary  rope  control 
freight  elevator.  This  control  has 
no  automatic  features,  except  that 
the  car  stops  automatically  at  the 
top  and  bottom  at  the  limit  of  its 
travel. 

We  can  furnish  this  control  with 
any  of  our  types  of  machines,  but 
we  do  not  recommend  its  use,  as  it 
is  always  open  to  the  possibility  of 
the  car  being  started  by  the  attend¬ 
ant  on  another  floor  at  the  moment 
it  is  being  loaded  or  unloaded,  and 
so  the  danger  of  accident  is  always 
more  or  less  present  with  any  rope 
control  dumbwaiter. 


30 


View  from  above  of  Two-Button  Control 
FOR  Type  A  Machine. 


Traction  Sheave  Machine,  Type  A, 
WITHOUT  Control. 


ELECTRIC  DUMBWAITERS 


DRUM  MACHINES 
Direct  or  Alternating  Current 


DUTY  TABLES 


Type 

Load 

Speed 

B. 

100  lbs. 

150 

F. 

P.  M. 

150  “ 

100 

U 

B.  O. 

100  lbs. 

225 

F. 

P.  M. 

150  “ 

200 

ii 

200  “ 

150 

(C 

250  “ 

100 

a 

B.  A. 

200  lbs. 

200 

F. 

P.  M. 

250  “ 

150 

ii 

400  ‘‘ 

100 

a 

500  ‘‘ 

75 

a 

B.  B. 

250  lbs. 

200 

F. 

P.  M. 

300  “ 

150 

C. 

100  lbs. 

500 

F. 

P.  M. 

200  “ 

300 

n 

300 

200 

(i 

400  “ 

150 

a 

500  “ 

100 

u 

D. 

200  lbs. 

500 

F. 

P.  M. 

300  “ 

400 

400  “ 

300 

a 

500  “ 

200 

If  desired,  Counterweight  can  be  omitted 
on  speeds  100  F.  P.  M.  and  150  F.  P.  M.  in 
type  B.  and  B.  O.  by  adding  in  weight  of 
car  in  figuring  duty. 

Slack  Cable  Device  on  car. 

Alternating  machines  car  speed  limited  to 
200  F.  P.  M. 


Two  and  Three  Button  Controls  car  speed 
limited  to  200  F.  P.  M. 

Rope  Control  machines  car  speed  limited 
to  130  F.  P.  M. 

If  travel  over  100  feet,  allow  for  weight 
of  cables  in  figuring  duty. 


ELECTRIC  DUMBWAITERS 


TRACTION  SHEAVE  MACHINES 
Direct  Current  only 


DUTY  TABLES 


Type 

Load 

Speed 

A. 

40 

60 

80 

100 

lbs. 

ii 

iC 

(( 

200  F.  P. 
130 

100 

75 

M. 

A.  O. 

100  lbs. 

200  F.  P. 

M. 

130 

150 

150 

n 

130 

(C 

200 

(( 

100 

250 

(( 

75 

A.  A. 

200 

lbs. 

200  F.  P. 

M. 

250 

(i 

150 

(( 

300 

ii 

130 

6( 

350 

u 

100 

a 

A.  B. 

400  : 

lbs. 

100  F.  P. 

M. 

500 

75 

(( 

Counterweight  necessary. 
No  slack  cable  device. 

No  slowing  up  device. 

Do  not  use,  if  accurate 
stop  is  desired,  at  higher 
speed  than  130  F.  P.  M. 


AUTOMATIC  Limit  of  travel,  100  feet. 
STOP  Limit  of  No.  of  stops,  10. 


2  or  3  No  limit  of  stops. 

BUTTON  If  travel  over  100  ft,,  allow 

for  weight  of  cables  in 
figuring  duty. 


ROPE  Limit  of  speed,  130  F.  P. 

M. 

If  travel  over  100  feet,  al¬ 
low  for  weight  of  cables 
in  figuring  duty. 


Hatchway  Dimensions 


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COLUMBIA  UNlVCRilTY' 


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